%0 Journal Article %A A. L. Ushakov %T Fast solution of the model problem for Poisson's equation %J Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika %D 2017 %P 36-42 %V 9 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/VYURM_2017_9_4_a4/ %G ru %F VYURM_2017_9_4_a4